// Preload navigation rollovers
var nav_home_off = new Image();
nav_home_off.src = 'images/nav_home_off.gif';

var nav_home_on = new Image();
nav_home_on.src = 'images/nav_home_on.gif';

var nav_about_off = new Image();
nav_about_off.src = 'images/nav_about_off.gif';

var nav_about_on = new Image();
nav_about_on.src = 'images/nav_about_on.gif';

var nav_news_off = new Image();
nav_news_off.src = 'images/nav_news_off.gif';

var nav_news_on = new Image();
nav_news_on.src = 'images/nav_news_on.gif';

var nav_activities_off = new Image();
nav_activities_off.src = 'images/nav_activities_off.gif';

var nav_activities_on = new Image();
nav_activities_on.src = 'images/nav_activities_on.gif';

var nav_preserves_off = new Image();
nav_preserves_off.src = 'images/nav_preserves_off.gif';

var nav_preserves_on = new Image();
nav_preserves_on.src = 'images/nav_preserves_on.gif';

var nav_resources_off = new Image();
nav_resources_off.src = 'images/nav_resources_off.gif';

var nav_resources_on = new Image();
nav_resources_on.src = 'images/nav_resources_on.gif';

var nav_add_members_off = new Image();
nav_add_members_off.src = 'images/nav_add_members_off.gif';

var nav_add_members_on = new Image();
nav_add_members_on.src = 'images/nav_add_members_on.gif';

var nav_update_member_off = new Image();
nav_update_member_off.src = 'images/nav_update_member_off.gif';

var nav_update_member_on = new Image();
nav_update_member_on.src = 'images/nav_update_member_on.gif';

var nav_spreadsheet_view_off = new Image();
nav_spreadsheet_view_off.src = 'images/nav_spreadsheet_view_off.gif';

var nav_spreadsheet_view_on = new Image();
nav_spreadsheet_view_on.src = 'images/nav_spreadsheet_view_on.gif';

var nav_print_members_off = new Image();
nav_print_members_off.src = 'images/nav_print_members_off.gif';

var nav_print_members_on = new Image();
nav_print_members_on.src = 'images/nav_print_members_on.gif';

var nav_donation_info_off = new Image();
nav_donation_info_off.src = 'images/nav_donation_info_off.gif';

var nav_donation_info_on = new Image();
nav_donation_info_on.src = 'images/nav_donation_info_on.gif';

var navPrefix = 'nav_';

function rollOver(id) {
	document.images[id].src = eval(id + '_on.src');
}

function rollOut(id) {
	document.images[id].src = eval(id + '_off.src');
}

function rollNavOver(id) {
	rollOver(navPrefix + id);
}

function rollNavOut(id) {
	rollOut(navPrefix + id);
}

//for volunteer value form
function checkifyes(){
	var temp = '';
	if ((document.form3.mileage.value != '') && (document.form3.mileage.value != 'N/A')){
		temp = document.form3.mileage.value
	}
	if (document.form3.driver_or_rider.options[document.form3.driver_or_rider.selectedIndex].value =='Yes'){
		//alert("Hello World!")
		document.form3.mileage.disabled=false
		document.form3.mileage.value=temp

	}
	else {
		document.form3.mileage.disabled=true
		document.form3.mileage.value='N/A'
	}
}
function checkifnew(){
	var temp = '';
	if (document.form3.new_title.value.length > 0){
		temp = document.form3.new_title.value
	}
	else{
		temp='N/A'
	}
	if (document.form3.project.options[document.form3.project.selectedIndex].value =='Ongoing'){
		document.form3.old_title.disabled=false
		document.form3.new_title.disabled=true
		if (document.form3.new_title.value == ''){
			temp='N/A';
		}
		document.form3.new_title.value=temp	

	}
	else {
		if (document.form3.new_title.value == 'N/A'){
			temp='';
		}
		document.form3.old_title.disabled=true	
		document.form3.new_title.disabled=false
		document.form3.new_title.value=temp	
	}
}